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Investigating the Role of Wind Turbine Pitch using CFD

Sobotta, Dorit and Howell, Robert and Lou, Jing (2016) Investigating the Role of Wind Turbine Pitch using CFD. In: MATEC Web of Conferences. 2016 International Conference on Green Energy and Applications, 23.-25. März 2016, Singapur, Singapur. ISSN 2261-236X

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Abstract

Horizontal axis wind turbines are an attractive renewable energy source due to their very low carbon emission during their life cycle. In this study the effect of pitching the rotor blades of the NREL Phase VI rotor has been investigated in detail using CFD in order to allow a detailed torque analysis. Initial investigations have shown that at low rotational speeds the inboard section of the blade is responsible for the majority of the power generation. As the rotational speed increases the power producing section is shifted towards the blade tip. These trends are less pronounced when the blade is pitched which allows the blade to generate significantly more power at low rotational speeds. The improved low speed performance however comes at the cost of a significantly lower maximum power output. These findings are particularly relevant for turbines operating in unfavourable wind environments and for small scale turbines which solely rely on their aerodynamic torque for starting.

Item URL in elib:https://elib.dlr.de/103072/
Document Type:Conference or Workshop Item (Speech)
Title:Investigating the Role of Wind Turbine Pitch using CFD
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sobotta, DoritFTUNSPECIFIED
Howell, RobertUNSPECIFIEDUNSPECIFIED
Lou, JingUNSPECIFIEDUNSPECIFIED
Date:February 2016
Journal or Publication Title:MATEC Web of Conferences
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:MATEC
ISSN:2261-236X
Status:Published
Keywords:Wind Turbine, Wind Energy, Power, CFD, Aerodynamics, Torque
Event Title:2016 International Conference on Green Energy and Applications
Event Location:Singapur, Singapur
Event Type:international Conference
Event Dates:23.-25. März 2016
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:other
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Wind Energy (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems
Deposited By: Sobotta, Dorit
Deposited On:15 Nov 2016 13:50
Last Modified:31 Jul 2019 20:00

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